Anti-R1 antibodies can be readily obtained from commercial sources. The R1 protein is a reported synonym for the human gene RRM1, encoding ribonucleotide reductase catalytic subunit M1. The full-length protein is 90,070 daltons in mass and has been noted to be cytoplasmic. This protein is a member of the Ribonucleoside diphosphate reductase large chain family. Visit the antibody supplier page for key details, including validated applications and target specificity.